Validity of the Draw a Person: A Quantitative Scoring System with the WISC-R

Abstract

This study examined the relationship between the Draw A Person: A Quantitative Scoring System and the WISC-R with a referred school-aged population. The significance of difference between the standard scores that the two tests yield was examined, as well as the convergent and concurrent validity of the Draw A Person. Additionally, the differences between specific pairs of scores (e.g., PIQ vs. DAP) required for significance when interpreting results for an individual subject were computed. Results indicated that the DAP yields mean scores approximately 4 points lower than the WISC-R, as expected due to softening of the Wechsler norms, and the standard scores correlated significantly (DAP Total Test/FISQ r = .51). Implications for the use and interpretation of these measures as part of a test battery are presented.